<p>Editorial</p><p>Part I: Diversity of forest tree endophytes </p><p>1. Structure of Diversity in Dark Septate Endophytes: From Species to Genes<br>Christoph R. Grünig and Thomas N. Sieber</p><p>2. Diversity of Fungal Endophytes in Temperate Forest Trees<br>Martin Unterseher</p><p>3. The Holomorph Apiognomonia quercina/Discula quercina as a Pathogen/Endophyte in Oak<br>Salvatore Moricca and Alessandro Ragazzi</p><p>4. Diversity of Fungal Endophytes in Tropical Trees<br>Trichur S. Suryanarayanan</p><p>5. Tree Endophytes and Wood Biodegradation<br>Jaime Rodríguez, Juan Pedro Elissetche and Sofía Valenzuela</p><p>6. Diversity of Endophytic Bacteria in Forest Trees<br>Hironari Izumi </p><p>7. The Genomes of Endophytic Bacteria <br>A. Carolin Frank</p><p>Part II: Endophytes in tree growth promotion and stress tolerance</p><p>8. Endophytic Bacteria in Tree Shoot Tissues and Their Effects on Host<br>Anna Maria Pirttilä</p><p>9. Growth-Promoting Endophytic Fungi of Forest Trees<br>Sharon L. Doty</p><p>10. The endophytic Trichoderma hamatum Isolate DIS 219b Enhances Seedling Growth and Delays the Onset of Drought Stress in Theobroma cacao<br>Bryan A. Bailey, Hanhong Bae, Rachel Melnick and Jayne Crozier</p><p>Part III: Abiotic factors affecting endophyte diversity </p><p>11. Responses of Foliar Endophytes to Pollution<br>Marjo Helander, Salla-Riikka Vesterlund and Kari Saikkonen</p><p>12. Dark Septate Endophytes and Mycorrhizal Fungi of Trees Affected by Pollution<br>Matevž Likar </p><p>Part IV: Bacterial endophytes in phytoremediation</p><p>13. Improved Phytoremediation of Organic Contaminants through Engineering of Bacterial Endophytes of Trees<br>Safiyh Taghavi, Nele Weyens, Jaco Vangronsveld and Daniel van der Lelie</p><p>14. Endophyte-Assisted Phytoremediation of Explosives in Poplar Trees by Methylobacterium populi BJ001T<br>Benoit Van Aken, Rouzbeh Tehrani and Jerald Schnoor</p><p>Part V: The promise of endophytes in biocontrol of trees</p><p>15. Foliar Endophytes of Spruce Species Found in the Acadian Forest: Basis and Potential for Improving the Tolerance of the Forest to Spruce Budworm<br>J. David Miller </p><p>16. Endophytes in Forest Management: Four Challenges<br>George Newcombe</p><p>Part VI: Endophytes as sources of new drug compounds</p><p>17. Antimicrobial Compounds from Tree Endophytes<br>Anja Schueffler and Timm Anke</p><p>18. Potential of Tree Endophytes as Sources for New Drug Compounds<br>Mysore V. Tejesvi and Anna Maria Pirttilä</p><p>Index</p>
